Moog Music Forum

On many analogue sequencers you can program the filter frequency to be at different levels per step. Is there a way to patch the voyager to do this with a sample and hold circuit? I assume you could patch in a click or possibly a square wave at a desired speed to make the SH change values at a specific rate, but what about the filter freq? Could you make some sort of signal that would allow you to have the filter at different frequencies (not random) at these intervals?

Do you mean staircase modulation? I.e. sampling a triangle LFO to produce a stepped triangle. Probably not

If you want a programmed filter cutoff value, you need to have control of this parameter. A step sequencer is very useful here.

Another way to do it, which I remember years back from GregAE's infinite source of wisdom , is to sequence MIDI program changes from your DAW or hardware seq if you can. For each patch, you can program the changes in sound (e.g. filter, wave, etc.) and have your sequence running to "step" through the presets as fast as you wish. And probably perfectly in sync with MIDI clock

The one downside is you fill up your memory pretty quick, but who needs 896 patches anyway?

S/H to the filter is a panel destination. You can pot map it further if need be. If you are looking for stepping of the change and not random, you are going to need some offboard gear. (Analog or digital) I run an LFO tri or sine through my quantizer for that. Moog really needs a VCA to allow this sort of fun with Foogers.

Also, you can make patches that sound like a sequencer, you just have to be the voltage store with your fingers on the keyboard.

You could also hook up an expression pedal to the sample and hold input of the Voyager. Not a true (repetitive) sequence but it will be less random than when noise is used as a source.

i think the cp 251 has a complete s/h circuit. You could feed it with noise, trigger it with the keyboard and feed the output to your filter in.

Or you could use velocity to modulate the filter cutoff

How would I have a DAW, such as ableton live, change things other than the note (like filter freq or wave type)?
Also, is this possible with other midi sequencers, such as an mpc. I know the mpc can have it play a pattern, but how could I map the midi to adjust more than just the sequence of notes being played?

noSpoonMusic wrote:How would I have a DAW, such as ableton live, change things other than the note (like filter freq or wave type)?
Also, is this possible with other midi sequencers, such as an mpc. I know the mpc can have it play a pattern, but how could I map the midi to adjust more than just the sequence of notes being played?

An MPC and most DAWs can have complete control over the voyager..each knob responds to midi cc, or in some cases sysex i'm assuming. To find out which midi message does what it's probably easiest to hit record and tweak a knob whilst it's recording..the changes you've made will then show up and you can edit them, or create patterns for these to then send back to the voyager.
I've never tried it but you in ableton you could fire clips at the voyager which have different envolopes to affect for example filter freq without affecting the notes played. Using things like irregular length patterns and follow-actions you could have some sequenced but pseudo random filter changes. Ableton doesn't deal with sysex though so I'm not too sure whether some functions you couldn't do..An MPC will record them all and on the MPC4000 which I have, you have a q-link sequencer function. You can use this like an analogue style sequencer to get evolving patterns (it sends midi cc's to midi-out).

I have a doepfer maq 16/3 analogue sequencer though so all of this is irrelevant for me I'd thouroughly recommend if you're looking for an alternative method of sequencing like an analogue sequencer, you bite the bullet and get an analogue sequencer. I don't think you'd be dissapointed..